igneous
Granite
Granite (composed of Quartz, Feldspar, and Mica)
Hardness: 6-7 Mohs; Color: Salt and pepper/grey with white patches; Luster: Vitreous to dull; Structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75
- Hardness
- 6-7 Mohs
- Color
- Salt and pepper/grey with white patches
- Luster
- Vitreous to dull
Identified More igneous →
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Physical properties
Hardness: 6-7 Mohs; Color: Salt and pepper/grey with white patches; Luster: Vitreous to dull; Structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75
Formation & geological history
Formed by the slow crystallization of magma below Earth's surface. These plutonic rocks can range in age from the Precambrian to recent times, often found in continental crust orogens.
Uses & applications
Extensively used in construction for countertops, floor tiles, paving stones, curbing, and monuments due to its durability.
Geological facts
Granite is one of the hardest substances in the world and makes up a large part of the continental crust. The term 'granite' comes from the Latin 'granum', meaning a grain.
Field identification & locations
Identify by its visible interlocking crystals of mineral components (quartz being translucent, feldspar being opaque white/pink). Commonly found in mountainous regions or shield areas.
